Change-speed-gear-shifting mechanism.



R. B. MORTON,

CHANGE SPEED GEAR smrmm MECHANISM.

APPLICATION FILED MAY 1; 912. U PatentedJune 20, 1916.

3 SHEETS-SHEET I.

Illa.

g I v .hN W

1( *f W i u I o g "I \1 M W o N a&

N N 1H KM M WITNSSES INVENTOR THE COLUMBIA PLANOGIZAPM c0.. WASHINGTON.n.

R. B. MORTON CHANGE SPEED GEAR SHIFTING MECHANISM.

APPLICATION FILED MAY 1, I912.

Patented June 20, 1916.

3 SHEETS-8HEET 2.

[N VEN TOR WITNESSES rt-1|: COLUMBIA PLANOCIRAFH co.. wAsnmcT oN. D. c.

R. B. MORTON.

CHANGE SPEED GEAR SHIFTING MECHANISM.

APPLICATION FILED MAYI. I912.

1 ,1 @fiflUQ Patented June 20, 1916.

a sums-shin a.

mum

WITNESSES W W ag gaging]? MK 0 M I. PAT

CHANGE-SPEED-GEAR-SHIFTING MECHANISM.

Application filed May 1, 1912.

To all whom it may concern:

Be it known that I, RUDOLPH B. MORTON, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga, and State of Ohio,have invented new and useful Improvements in Change-Speed-Gear-ShiftingMechanism, of which the following is a specification. i

This invention relates to certain new and useful improvements in changespeed gear, the same being particularly designed for use on tractionengines, automobiles, or the like, although I do not desire to limitmyself in this particular.

One of the objects of the invention is to provide ,shiftable gears in achange speed mechanism which may selectively operated to secure variousdesirable changes in speed of the moving parts to which power is to beapplied, such for lnstance as the driving A further object is to provideimprovedmeans by which the selection of the desired shiftable gear isaccurately established, and operation or shifting of the remainingshiftablc gears positively prevented.

A further object is to provide improved means whereby it is necessary toreturn all the shiftable gears to inoperative position before adifferent gear may be selected and shifted to operative position.

A further object is to provide operating means for manipulating theshiftable gears, so constructed that the position thereof indicateswhether or not the shiftable gears are in operative or inoperativepositions.

A further object is to provide improved means for supporting theselective and looking devices in operative relation with said shiftablegears.

The invention will be hereinafter fully set forth and particularlypointed out in the claims. i

In the accompanying drawings :Figure 1 is a horizontal sectional viewillustrating a gear case containing stationary and shiftable gears of achange speed mechanism. Fig. 2 is an end elevation, illustrating theside bars of a traction engine or the like, in cross section. Fig. 3 isa detail side elevation of the operating lever and its adjuncts. Fig. 4is a plan view thereof. Fig.v 5 is an elevation of the lever at rightangles to Fig.

Specification of Letters Patent.

Patented June so, rare.

Serial No. 694,379.

3. Fig. 6 is a transverse sectional view on the line 66, Fig. 1. Fig. 7is a similar view on the line 7-7, Fig. 1. Fig. 8 is a detail plan viewof the locking device. Fig. 9 is a side elevation thereof. Fig. 10 is adetail cross sectional view of the locking device. Fig. 11 is a top planview illustrating the gear shifting bars. Fig. 12 is a side view of oneof said gear shifting bars. Fig. 13 isa top plan view illustrating theguide for the gear shifting bars, the latter being removed. Fig. la is alongitudinal sectional view illustrating the operative relaltaion ofsaid guide and said gear shifting ars.

Referring to the drawing, 10 designates a gear case of suitable orpreferred construction, having mounted therein the engine shaft 11, atransmission shaft 12, and a reverse shaft 13. The engine shaft may bedriven in any preferred manner by a suitable engine or motor (notshown). Mounted on the engine shaft 11 are slidable gears 14, 15 and 16,the gear 14 being preferably keyed or otherwise secured to the hub 17 ofthe gear 15, although I do not desire to limit myself in thisparticular. Said gears 15 and 16 are feathered or otherwise secured toshaft 11 in such manner as to rotate with said shaft, and be free toslide along the latter. Keyed or otherwise secured to the transmissionshaft 12 are gears 18, 19 and 20 arranged in such position that they maymesh respectively with the gears let, l5 and 16, whereby the powertransmitted by shaft 11 may be transmitted to the transmission shaft 12at a number of different speeds. The gear 16 is also adapted to meshwith a reversing gear 21 rotatably mounted upon the reversing shaft andmeshing with a gear 22 on the transmission shaft whereby saidtransmission shaft may be reversed when desired. Power is transmittedfrom the transmission shaft in any suitable manner, a bevel lie shiftingbars in position on said plate. The shifting bars 26, 26 are providedwith upstanding lugs 30, the lugs of the two bars being arranged inalinement, and also in alinement with the lugs 31 of a locking bar 32secured to the plate 29 adjacent the shifting arms 26, 26; Alongitudinally slidable rock shaft 35 is mounted in suitable bearings 36in case 10and supported thereby is a saddle 37 provided with hubs 38which are feath- 16 are all in theirnormal inoperative positions thelocking head 40 is engaged with the lugs 30 of the shifting bar 26, andthe inner portion of the locking head 42 is in engagement with the lugs30 of the shifting bar 26, the projecting portion of said loci.-

ing head 42 extending laterally beyond said i lugs. Keyed or otherwiserigidly secured to said shaft 35 is a selector finger 45 provided with ahead 46 adapted to engage thelugs 3O of either shifting bar 26, 26';

' The rock shaft 35 is operated by means of a lever 50 'pivotallyconnected to a block 51,

- rigidlysecured to said shaft, the lower end rai'lged transversely ofsaid shaft.

'of'said lever being mounted in a slot 52 formed in a web or plate 53extendmg from aebracket or support 54, said slot being ar- Saidbracketis also provided with a bearing 55 lugs 30 of the shifting bar26. desired to shift "any of the gears14, 15, 16,

for said shaft, anda guide plate or quadrant56 formed: with'two parallelslots 57 {communicating by means of a cross slot 58, the upper end ofsaid lever being extended through said guide plate and arranged to workwithinthe slots-of the latter.

The

number of slots 57 will correspond with the number ofshifting bars 26.26'. V 1

Inv practice, the normal position of the -lever50 is within the crossslot 58, and when the lever is in this position the locking head '42isin engagement with the locking bar 32 "and the lugs' ;3,0 of theshifting bar 26, and

the locking arm 39 in engagement with the When it is the lever 50 isswung laterally into either of the slots 57, according to thegear to beselected, and the effect of this movement is V to oscillate the rockshaft 35, the saddle 37 and the selector finger45. Assuming there fore,that the leverwas moved to the upper slot 57, Fig. 4f the locking armsand selector- :finger would assume the positions indicated in' dottedlines, Fig. 6] From this it will be seen that the locking head 40 willhave been moved out of engagement with the lugs of the shifting bar 26,and the selector finger 45 will have been moved into engagement withsaid lugs. At the same time the locking head 42 will have been moved soas to simultaneously engage the lugs 30 of bar 26 and the lugs 31 of thelocking bar 32, thereby locking said bar 26 against longitudinalmovement. It is obvious that if the foregoing movement of the lever 50should be reversed the bar 26 would be locked by reason of the lockinghead 40 engaging with the lugs 30 of said bar, the head 42 having movedout of engagement with the lugs 30 of the bar 26, leaving the latterfree to be .3

shifted longitudinally, said head 42, however, remaining in engagementwith the locking lugs 31. In either event it will be noted that just assoon as the lever 50 is moved into either of the slots 57 it may beshifted longitudinally in either direction, as desired, the slot 52permitting rocking of the lever, above described, and then acting as afulcrum when the lever is rocked to move the shaft longitudinally. Asthe lever is rocked thus the shaft 35 is correspondingly moved, andthrough the selector finger 45 will impart a longitudinal movement tothe respective shifting bar 26, 26' with which it may have been engaged,effecting a correspoluling shifting of one of the gears 15 and 16. Asthe shaft 35 is shifted longitudinally the saddle 37 is held againstcorresponding movement by reason of the engagement of the locking head42, with the locking lugs 31 of the locking bar 32, the space betweenthe hubs 39 permitting the longitudinal movement of the selector finger45 necessary to operate the selected shifting bar. From the foregoing itwill be observed that the cross slot 58 and the locking lugs 31.cooperate to indicate and secure the parts in neutral positions, andthat by reason of this relation the operator can determine by theposition of his lever 50 which of the shifting bars 26, 26 has beenengaged by the selector finger, and then the direction in which thelever is shifted longitudinally will indicate the particular change inthe speed or direction that is to be secured. It will be further notedthat while I have shown but two gear shifting bars and four gearchanges, I do not desire to limit myself in this connection, as it isobvious that any number of shifting bars may be employed, all of whichmay be selectively operated from the single lever 50 by means of the selector finger 45 and its adjuncts.

Havingthus explained the nature of my invention and described anoperative manner of constructing and using the same, although withoutattempting to set forth all of the forms 1n which it may be made, or allof the forms of its use, what I claim is 1. An improvement in changespeed mechshifting bars, and oscillatory locking means normally engagingwith the lugs of the locking bar and having means for selectivelyengaging the lugs of either gear shifting bar when the other is engagedby the said operating means.

2. An improvement in change speed mechanism comprising longitudinallymovable gear shifting bars, a stationary locking bar parallel therewith,said shifting and locking bar having lugs arranged in alinement, baroperating means movable transversely of said bars for selectivelyengaging the lugs of said shifting bars, and oscillatory locking meansnormally engaging with the lugs of the locking bar and having means forselectivelyengaging the lugs oi either gear shifting bar when the otheris engaged by said operating means.

3. An improvement in change speed mechanism comprising gear shiftingbars, a statirmary locking bar parallel therewith, said shifting andlocking bars having lugs arranged in alinement, a selector finger forselectively engaging the lugs of said shifting bars, and oscillatorylocking means normally in engagement with the lugs of the locking barand having means for selectively engagin the lugs of either gearshifting bar when the other is engaged by said selector finger.

An improvement in change speed mechanism comprising gear shifting bars,a stationary locking bar, a selector finger, means for actuating saidselector finger to selectively engage said shifting bars, andoscillatory means being arranged to engage and disengage said lockingand shifting bars to prevent movement of either shifting bar when theother is engaged bysaid selector finger.

5. An improvement in change speed mech anism comprising gear shiftingbars, a statienary locking bar, a selector finger, means for actuatingsaid selector finger to selectively engage said shifting bars, andoscillatory locking fingers, oscillatory means being arranged to engageand disengage said locking and shifting bars to prevent movement ofeither shifting bar when the other shifting bar is engaged by saidselector finger, said locking fingers being operated simultaneously withthe selective operation oi said selector finger.

6. An improvement in change speed mechanism comprising gear shiftingbars, a sta tionary locking bar, a selector finger, means for actuatingsaid finger to selectively engage said. shifting bars, and also tooperate the selected. shifting bar, and spaced apart oscillatory lockingfingers operated simultaneously with the selective operation of saidselect-or finger, said locking fingers being arranged toengage anddisengage said locking and shutting bars to prevent movement oi elthershiitmg bar when the other shifting bar is engaged by said selectorfinger, said selector finger being located in a plane between saidlocking fingers.

7. An improvement in change speed mechanism comprising gear shiftingbars, a stationary locking bar, means for selectively actuating saidshifting bars, and oscillatory locking fingers one of which is arrangedto engage said locking bar and to engage and disengage one of saidshifting bars, the other finger being arranged to engage the othershifting bar to prevent movement of either shifting bar when the othershifting bar is engaged by the selector finger, said selector fingerbeing located in a plane between said locking finger.

8. An improvement in change speed mechanism comprising gear shiftingbars, a stationary locking bar, means for selectively actuating saidshifting bars, and oscillatory locking fingers being arranged to engageand disengage said locking and shifting bars to prevent movement ofeither shifting bar when the other is engaged with said selectiveoperating means, and means for operating said shifting bar actuatingmeans and said locking fingers in unison.

9. An improvement in change speed mechanism comprising gear shiftingbars, a stationary locking bar, means for selectively actuating saidshifting bars, and oscillatory locking fingers connected with saidselective operating means and actuated simultaneously with the latter,said locking fingers being arranged to engage and disengage said lockingand shifting bars to prevent movement of either shifting bar when theother is engaged with said selective operating means.

10. An improvement in change speed mechanism comprising gear shiftingbars, a stationary locking bar, means for selectively actuating saidshifting bars, and spaced apart locking fingers arranged to engage saidoscillatory locking bar to normally prevent movement of said shiftingbars, said locking fingers being constructed to prevent movement ofeither of said shifting bars when the other is engaged by said selectiveoperating means, one of said locking fingers being provided with alaterally extended locking head.

11. An improvement in change speed mechanism con'iprising a rock shaft,a saddle mounted to swing therewith, gear shifting bars, a stationarylocking bar, means for selectively actuating said shifting bars, andlocking armscarried by said saddle and cooperating with said locking barto normally prevent movement of said shifting bars, said locking fingersbeing constructed to prevent -movement of either of said shifting barsanism comprising a rock shaft, a saddle mounted to swing therewith, gearshifting bars, a stationary locking bar, means for selectively actuatingsaid shifting bars, and locking arms carried by said saddle and 00-operating with said locking bar to normally prevent movement of saidshifting bars, said locking fingers being constructed to preventmovement of either of said shifting bars when the other is engaged bysaid selective actuating means, one of said locking arms being providedwith a laterally extended locking head. V

13. An improvement in change speed'mechanism comprising a rock shaft, asaddle 'mounted to swing therewith and having spaced apart sidesprovided with looking arms, gear shifting bars, a stationary lockingbar, means located between the sides of said saddle for selectivelyactuating said shifting bars, and locking arms depending from the sidesof said saddle and cooperating with said locking bar to normally preventmovement of said shifting bars, said locking fingers being constructedto prevent movement of either shifting bar when the other is engaged bysaid selective actuating means.

14'. An improvement in change speed mechanism comprising 'a rock shaft,a saddle mounted'to swingtherewith but free to permit relativelongitudinal movement, gear shifting bars, a stationary locking bar, aselector finger rigidly secured to said shaft and arranged toselectively engage either of said shifting bars, means carried by saidsaddle for cooperating with said locking 'bartonormally prevent movementofsaid shifting bars, said locking means also including means forpreventing movement of, either shifting'bar when the other is engaged,

, by said selector finger, and means for oscillati-ng said shaft andalso for moving the same longitudinally. I g f F15. An'improvement inchange speed mechanism comprising a rock shaft, a saddle mounted toswing therewith but free tolpermit; relative longitudinal "movement,gear shifting bars, a stationary locking bar; a

selector'finger rigidly'secured to said shaft jjand arrangedtoselectively engage either of said shifting bars, locking fingerscarriedby said, saddle and cooperating wlth said lock- ;i ing bar to :normallyprevent movement of we;

said, shifting bars, said locking fingers be ing' constructed to preventmovement of either' shifting barwhen the other is en gagedby saidselector finger, and means for oscillatingsaid-shaft and also for movingthe same longitudinally.

16. An improvement in change speed mechanism comprising a rock shaft, asaddle mounted to swing therewith but free to permit relativelongitudinal movement, gear shifting bars, a stationary locking bar, aselector finger rigidly secured to said shaft and arranged toselectively engage either of said shifting bars, said selector fingerbeing located between the sides of said saddle, means carried by saidsaddle for cooperating with said locking bar to normally preventmovement of said shifting bars, said locking means also including meansfor pre venting movement of either shifting bar when the other isengaged by said selector finger, and means for oscillating said shaftand also for moving the same longitudinally.

17. An improvement in change speed mechanism comprising a rock shaft, asaddle mounted to swing therewith but free to permit relativelongitudinal movement, gear shifting bars, a stationary locking bar, aselector finger rigidly secured to said shaft and arranged toselectively engage either of said shifting bars, said selector fingerdepending from said shaft at a point between the sides of said saddle,depending locking fingers carried by said saddle and cooperating withsaid locking bar to normally prevent movement of said shifting bars,said locking fingers being constructed to prevent movement of eithershifting bar when the other is engaged by said selector finger, andmeans for oscillating said shaft and also for moving the samelongitudinally.

18. An improvement in change speed mechanism comprising a rock shaft, asaddle mounted to swing therewith but free to permit relativelongitudinal movement, gear shifting bars, a stationary locking bar, aselector finger rigidly secured to said shaft and arranged toselectively engage either of said shifting bars, said selector fingerdepending from said shaft at a point between the sides of said saddle,depending locking fingers carried by said saddle and cooperatin g withsaid locking bar to normally prevent movement of said shifting bars,said looking fingers being constructed to prevent movement of eithershifting bar when the other is engaged by said selector finger, and

- means for oscillating said shaft and also for moving the samelongitudinally, one of said locking fingers being provided with alaterally extended locking head.

19. An improvement in change speed mechanism comprising gear shiftingbars lit) ment of either of said shifting bars, when the other isengaged by said operating means.

20. An improvement in change speed mechanism comprising gear shiftingbars provided with headed lugs, a guide plate upon which said shiftingbars are arranged to slide, said guide plate being provided with slotsto receive said lugs, the heads of said lugs underlying said slots toretain said shifting bars in position on said plate, a locking bar,operating means for selectively engaging either of said shifting bars,and oscillatory means cooperating with said locking bar to normallyprevent movement of said shifting bars, said locking means alsoincluding means for preventing movement of either shifting bar when theother is engaged by said operating means.

21. An improvement in change speed mechanism comprising gear shiftingbars, means for selectively shifting said bars, means for selectivelylocking said bars, a lever for operating said shifting and said lockingmeans, a bracket in which said lever is mounted, said bracket beingprovided with guide slots to permit movement of the lever to shift saidbars, said guide slots corresponding in number to said bars, said slotsbeing connected by a cross slot relatively positioned with respect tothe locking means to cause all of the shifting bars to be locked whensaid lever is in said cross slot.

22. An improvement in change speed mechanism comprising gear shiftingbars, means for selectively shifting said bars, means for selectivelylocking said bars, a lever for operating said shifting and said lockingmeans, a bracket in which said lever is mounted, said bracket beingprovided with guide slots to permit movement of the lever to shift saidbars, the sides of said slots forming fulcrums for lateral movements ofsaid lever, and means engaging the lower end of said lGXGl to permitswinging movement of said end when the lever is fulcrumed against thesides of the guide slots, and for preventing movement of said end whenthe lever is moved longitudinally of the guide slots, said guide slotscorresponding in number to said gear shifting bars and being connectedby a cross slot relatively positioned with respect to the locking meansto cause all of the shifting bars to be locked when said lever is insaid cross slot.

28. An improvement in change speed mechanism comprising gear shiftingbars, a locking bar, a longitudinally movable rock shaft, meansconnected with said rock shaft for selectively actuating said shiftingbars, a locking member operated by oscillation of said shaft andcooperating with said locking bar for locking either of the shiftingbars when the other is engaged by the shifting means, a bracket in whichone end of said shaft is mounted, a lever attached to said shaft andfulcrumed in said bracket, said bracket being provided with a quadranthaving spaced apart slots parallel with said shaft and corresponding innumber with said shifting bars, said slots being connected by a singletransverse slot, said locking bar and locking member being relativelypositioned with respect to the cross slot to cause all of the shiftingbarsto be locked when said lever is in said cross slot.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

RUDOLPH l3. MORTON.

\Vitnesses NM. S. Honors, CHAS. E. RIoRnAN.

flopiea of this patent may be obtained for five cents each, byaddressing the Commissioner of Patenta, Washington, JD. 0."

